Background: Most criminal cases with physical abuse such as murder, torturing, raping and so on may be found blood, sperm, saliva, urine, hair or others anatomic tissue in crime scene. To identify the time of physical abuse that resulting injured victim and leave blood spots that can be found in crime scene, where there’s no eye witness that seen the incident need observations and accurate and proper method. Observation regarding the changing color of the blood spots have ever been done by Shahrom Wahid and James H. Stuart.
Objective: This observation is objected to identify the age of blood spots that found in crime scene based on blood changing color.
Method : This observations are conducted towards 50 men and women with Hb count up for men is 13-15 g/dl and for women 12-14 g/dl and with no blood aberration (disorder) history. By using descriptive cross sectional observation method and using color equivalent equipment in sort of color card (Natural Color System = NCS) issued by Scandinavian Color Institute (SCI) of Stockholm, Sweden, can identify age of human blood spots based on changing color.